Poor ovarian response in IVF: when more medication does not necessarily produce more eggs

If you have low AMH, or a previous IVF cycle produced only a handful of eggs, you have probably heard one of two stories. One says nothing will work. The other says the answer is simply more medication. Neither is accurate, and acting on either can cost you time, money and hope.

This article explains what "poor ovarian response" actually means, why higher doses often do not deliver more eggs, and how clinics think about planning when egg numbers are low.

Reserve and response are not the same thing

Two ideas are easy to blur together:

• Ovarian reserve is an estimate, made before treatment, of how many eggs your ovaries are likely to offer. AMH and the antral follicle count are the main tests.
• Ovarian response is what actually happens once stimulation starts: how many follicles grow and how many eggs are collected.

Low reserve predicts a low response, but the prediction is not perfect. Some people with low markers respond better than expected, and some with reassuring markers respond poorly. A real cycle is the most direct evidence you will get. Our separate guide to the antral follicle count explains the scan side of the prediction.

How poor response is defined

There is no single universal definition. The ASRM Practice Committee (2020) describes the ESHRE Bologna criteria, which need two of three features: age over 40 or another risk factor, a previous poor response, or an abnormal reserve test. It adds that two episodes of poor response after maximal stimulation are enough on their own to define a poor responder, even without the age or test criteria.

Other classification systems exist, and they help researchers and clinicians compare like with like. A label, though, is not a treatment plan.

Low AMH does not mean IVF is off the table

ASRM is direct on this point. In its 2020 committee opinion, a low reserve result is treated as information for counselling, not as grounds for turning someone away or talking them out of treatment.

It also gives a sense of how hard the extreme end can be. For extremely low AMH, under 0.16 ng/mL, national data cited by ASRM showed 54% of cycles cancelled, about half yielding three or fewer eggs, a quarter with no embryo to transfer, and a live birth rate of 9.5% per cycle started (20.5% per transfer). Those figures are sobering, but they are not zero, and ASRM still says such values should not be used to refuse treatment.

Age changes the picture considerably. Collecting three eggs at 31 and three eggs at 43 are very different situations, because egg quality, not just egg number, declines with age. Your AMH result is a starting point for that conversation, not the conclusion of it.

Why more medication does not always mean more eggs

Stimulation medication works on the follicles that are already available to respond in that cycle. It can help more of them grow, but it cannot create follicles that are not there. When the available group is small, raising the dose has a ceiling. Past a point, a higher dose mainly adds cost and side effects.

That is why some poor responders are offered lower-dose or "mild" approaches. The reasoning is that, when the follicle pool is small, a lower dose may give a similar number of usable eggs with less medication. Whether that holds for you is a fair question for your clinic, and it does not make mild stimulation better for everyone. It means that "maximum dose" is not automatically the most effective choice. If you are comparing approaches on cost as well as burden, our article on mini-IVF versus conventional IVF looks at the trade-offs.

The ESHRE ovarian stimulation guideline (2025 update) gives special attention to pre-treatment and add-on medicines for low responders, reflecting how much is offered in this area and how mixed the evidence is.

Things that are often suggested, and what the evidence says

ICSI because there are only a few eggs

It is common to hear that ICSI should be used to "make the most" of a small number of eggs. The ASRM Practice Committee's 2026 opinion says ICSI is not recommended for low egg yield or diminished ovarian reserve unless there is a male-factor problem. In a randomised trial of 96 patients with fewer than six eggs that it describes, fertilisation was 77.7% with ICSI and 70.2% with conventional IVF, fertilisation failure was 11.5% in both groups, and clinical pregnancy was 17.3% and 21.1%.

Supplements and hormone add-ons

Low responders are often offered extras. The UK regulator rates androgen supplementation grey, meaning there is not enough good-quality evidence to judge, and platelet-rich plasma (PRP) red, meaning there are potential safety or effectiveness concerns (HFEA, reviewed 2026). Growth hormone is one of the most debated options; we look at it in detail in our article on growth hormone in IVF.

Planning across more than one cycle

When each cycle predictably yields only a few eggs, the useful question often shifts from "how do we get more eggs this time?" to "what is a realistic plan across several attempts?"

An illustrative example only: suppose a patient reliably collects three eggs per cycle. Rather than pushing for ten in one cycle, the plan might be two or three collections, freezing embryos or eggs from each, then transferring the best ones. Whether that makes sense depends on age, cost, time, and how much treatment the patient wants to go through. The numbers here are invented to show the idea, not a recommendation.

Banking across cycles has its own costs and limits, covered in our guide to egg banking across multiple retrievals.

Cancellation policies

Clinics differ on what happens when very few follicles grow. Some cancel and restart; others go ahead because even one or two eggs may matter to that patient. Neither is wrong in itself, but you should know your clinic's approach before you start. That is especially true if you are travelling, where a cancelled cycle can mean rebooked flights and extra nights away.

When donor eggs come up

For some poor responders, particularly at older ages, donor eggs may be raised as an option. It is a personal decision with emotional, legal and financial dimensions, and it should be offered as one choice among several, after an honest look at your own data, not as the only door left open.

Travelling for treatment with a low-response plan

A plan built on several smaller collections changes the travel maths. Each collection usually means time at the clinic, and a low-response cycle is more likely than average to be adjusted or cancelled at short notice. Before booking, ask whether early monitoring can be done near home, so you only travel once the response is clear. Book flexible tickets where you can, and ask whether eggs or embryos from each collection can be stored at the clinic until you are ready to transfer.

Looking after yourself along the way

Repeated cycles with few eggs can be draining in a way that is hard to explain to people who have not been through it. It is reasonable to set limits in advance, such as a number of cycles or a budget, and to revisit them together with your clinic rather than deciding everything after each disappointing result. Fertility counselling, where it is available, is designed for exactly this kind of decision.

Questions to ask after a poor-response cycle

• What were my AMH and baseline follicle count, and how did my actual response compare?
• How many follicles grew, how many eggs were collected, and how many were mature?
• Was my dose already high? Would a lower or different approach be reasonable?
• What is your policy if only one or two follicles grow?
• Is any add-on being suggested, and what is its evidence rating?
• Given my age and results, what does a realistic plan across more than one cycle look like?

Frequently asked questions